Christopher Callahan

449 total citations
6 papers, 362 citations indexed

About

Christopher Callahan is a scholar working on Psychiatry and Mental health, Geriatrics and Gerontology and Surgery. According to data from OpenAlex, Christopher Callahan has authored 6 papers receiving a total of 362 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Psychiatry and Mental health, 2 papers in Geriatrics and Gerontology and 1 paper in Surgery. Recurrent topics in Christopher Callahan's work include Dementia and Cognitive Impairment Research (3 papers), Health disparities and outcomes (1 paper) and Pulmonary Hypertension Research and Treatments (1 paper). Christopher Callahan is often cited by papers focused on Dementia and Cognitive Impairment Research (3 papers), Health disparities and outcomes (1 paper) and Pulmonary Hypertension Research and Treatments (1 paper). Christopher Callahan collaborates with scholars based in United States, Vietnam and Germany. Christopher Callahan's co-authors include Fredric D. Wolinsky, J F Fitzgerald, Rebecca J. Johnson, Malaz Boustani, Xueya Cai, Babar Khan, Noll L. Campbell, Greg A. Sachs, Hugh C. Hendrie and Jiwang Chen and has published in prestigious journals such as Alzheimer s & Dementia, Current Alzheimer Research and Pulmonary Circulation.

In The Last Decade

Christopher Callahan

6 papers receiving 348 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Christopher Callahan United States	4	126	124	106	69	56	6	362
Felix Hon Wai Chan Hong Kong	12	46 0.4×	86 0.7×	63 0.6×	21 0.3×	22 0.4×	22	320
Kathleen K. Brody United States	9	86 0.7×	163 1.3×	70 0.7×	57 0.8×	34 0.6×	14	396
Flávia Campora Brazil	8	80 0.6×	194 1.6×	84 0.8×	21 0.3×	46 0.8×	11	479
Yamei Bai China	8	93 0.7×	64 0.5×	82 0.8×	59 0.9×	10 0.2×	41	357
Alessandra Casè Italy	8	266 2.1×	147 1.2×	65 0.6×	91 1.3×	17 0.3×	8	462
Thang Pham Vietnam	14	138 1.1×	120 1.0×	95 0.9×	69 1.0×	28 0.5×	36	468
Edwin Olsen United States	9	38 0.3×	133 1.1×	87 0.8×	32 0.5×	34 0.6×	11	408
K H Asberg Sweden	4	67 0.5×	75 0.6×	55 0.5×	35 0.5×	32 0.6×	8	307
Sevnaz Şahin Türkiye	14	183 1.5×	66 0.5×	98 0.9×	32 0.5×	23 0.4×	72	657
Parveen Kumar India	9	28 0.2×	107 0.9×	235 2.2×	70 1.0×	29 0.5×	24	486

Countries citing papers authored by Christopher Callahan

Since Specialization

Citations

This map shows the geographic impact of Christopher Callahan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Christopher Callahan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christopher Callahan more than expected).

Fields of papers citing papers by Christopher Callahan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christopher Callahan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Christopher Callahan. The network helps show where Christopher Callahan may publish in the future.

Co-authorship network of co-authors of Christopher Callahan

This figure shows the co-authorship network connecting the top 25 collaborators of Christopher Callahan. A scholar is included among the top collaborators of Christopher Callahan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Christopher Callahan. Christopher Callahan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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6 of 6 papers shown

1.

Castellon, Maricela, et al.. (2022). Hypoxia‐induced pulmonary hypertension upregulates eNOS and TGF‐β contributing to sex‐linked differences in BMPR2^+/R899X mutant mice. Pulmonary Circulation. 12(4). e12163–e12163. 8 indexed citations

2.

Callahan, Christopher. (2016). F2‐02‐04: Dissemination Science: Addressing Challenges to the Widespread use of Evidence‐Based Home Dementia Care. Alzheimer s & Dementia. 12(7S_Part_4). 1 indexed citations

3.

Vollmar, Horst Christian, Jochen René Thyrian, Michael A. LaMantia, et al.. (2015). „Aging Brain Care Program“ aus Indianapolis. Zeitschrift für Gerontologie und Geriatrie. 49(1). 32–36. 2 indexed citations

4.

Cai, Xueya, Noll L. Campbell, Babar Khan, Christopher Callahan, & Malaz Boustani. (2012). Long‐term anticholinergic use and the aging brain. Alzheimer s & Dementia. 9(4). 377–385. 143 indexed citations

5.

Callahan, Christopher, Malaz Boustani, Greg A. Sachs, & Hugh C. Hendrie. (2009). Integrating Care for Older Adults with Cognitive Impairment. Current Alzheimer Research. 6(4). 368–374. 30 indexed citations

6.

Wolinsky, Fredric D., Christopher Callahan, J F Fitzgerald, & Rebecca J. Johnson. (1993). Changes in functional status and the risks of subsequent nursing home placement and death.. PubMed. 48(3). S94–101. 178 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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